Samson TROVIS 5500 User manual

TROVIS 5500 Automation System
TROVIS 5571 Programmable Logic
Controller (PLC)
Standard Application for Lag/Lead Sequence WT71
Operating Instructions
EB 5571-2 EN
®
Electronics from SAMSON
Firmware version 1.50
Edition January 2014

Safety instructions
4These operating instructions (EB 5571-2 EN) describe the standard applica-
tion WT71, which can be transferred to the TROVIS 5571 Programmable
Logic Controller (PLC).
Read the Mounting and Operating Instructions EB 5571 EN for the
TROVIS 5571 Programmable Logic Controller (PLC). These instructions con-
tain important information on the installation, electrical connection, start-up
and communication of the TROVIS 5571 Programmable Logic Controller.
4The device may only be assembled, started up or operated by trained and
experienced personnel familiar with the product.
4Proper shipping and appropriate storage are assumed.
4The controller has been designed for use in electrical power systems. For
wiring and maintenance, you are required to observe the relevant safety
regulations.
2EB 5571-2 EN
Safety instructions

Contents Page
1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1.1 Operating keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3.1 Setting the operating mode . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Selecting the language . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.5 Heat exchangers settings . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5.1 Enabling heat exchangers and selecting lead heat exchanger. . . . . . . 9
1.6 Setting the system time . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7 Entering time schedules . . . . . . . . . . . . . . . . . . . . . . . . 13
1.8 Entering public holidays . . . . . . . . . . . . . . . . . . . . . . . . 15
1.9 Setting parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.1 System code numbers . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.1.1 Configuring the system. . . . . . . . . . . . . . . . . . . . . . . . . 17
3 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4 Functions of the heat exchanger . . . . . . . . . . . . . . . . . . . . 22
4.1 Parallel operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2 Lag/lead sequence control . . . . . . . . . . . . . . . . . . . . . . . 22
4.2.1 Unrestricted sequence . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2.2 Outdoor-temperature-dependent sequence . . . . . . . . . . . . . . . 23
4.2.3 Sequence lock over the binary input . . . . . . . . . . . . . . . . . . 24
4.2.4 Sequence delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3 Change in lag/lead sequence . . . . . . . . . . . . . . . . . . . . . 25
4.3.1 Outdoor-temperature-dependent change . . . . . . . . . . . . . . . . 25
4.3.2 Capacity-dependent change . . . . . . . . . . . . . . . . . . . . . . 26
4.3.3 Operating hours-dependent change . . . . . . . . . . . . . . . . . . 26
4.4 Smooth start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.5 Time schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5 Functions of the heating circuit. . . . . . . . . . . . . . . . . . . . . 28
5.1 Weather-compensated control . . . . . . . . . . . . . . . . . . . . . 28
5.1.1 Gradient characteristic. . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1.2 Four-point characteristic . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.3 Fixed set point control . . . . . . . . . . . . . . . . . . . . . . . . . 31
6 Functions of DHW heating . . . . . . . . . . . . . . . . . . . . . . . 33
6.1 DHW heating in the storage tank system . . . . . . . . . . . . . . . . 33
EB 5571-2 EN 3
Contents

6.1.1 Priority operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.2 Thermal disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.3 External demand for DHW. . . . . . . . . . . . . . . . . . . . . . . 34
6.4 Time schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7 General functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.1 Outdoor-temperature-dependent deactivation. . . . . . . . . . . . . . 36
7.2 Summer mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.3 Forced operation of the pumps . . . . . . . . . . . . . . . . . . . . . 37
7.4 Flow temperature limitation . . . . . . . . . . . . . . . . . . . . . . 37
7.5 Return flow temperature limitation . . . . . . . . . . . . . . . . . . . 37
7.6 Condensate accumulation control . . . . . . . . . . . . . . . . . . . 38
7.7 Three-step control . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.8 Continuous control. . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.9 Processing an external demand . . . . . . . . . . . . . . . . . . . . 42
7.10 Separate set point . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.11 Position feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.12 Forwarding the measured outdoor temperature . . . . . . . . . . . . . 44
7.13 Fail-safe behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
8 Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . . . 45
8.1 Alternative assignment. . . . . . . . . . . . . . . . . . . . . . . . . 70
9 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
9.1 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
9.1.1 Heat exchangers WT1, WT2 and WT3 . . . . . . . . . . . . . . . . . 74
9.1.2 Heating circuits HK1, HK2 and HK3 . . . . . . . . . . . . . . . . . . 76
9.1.3 DHW heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
9.1.4 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
4EB 5571-2 EN
Contents

1 Operation
The application software is ready for operation with the default temperature and time schedule
settings after it has been transferred to the TROVIS 5571 PLC.
On start-up, the language as well as the current time and date must be set in the controller. Re-
fer to section 1.6.
1.1 Operating elements
1.1.1 Operating keys
The keys are located in the front panel of the PLC and protected by a Plexiglas door.
Changeover key
(press with pen or other pointed item)
Switch between the operating level and settings level
Reset key
(press with pen or other pointed item)
Resets the PLC.
NOTICE The application in the controller is deleted.
Cursor key(s)
– Navigate within levels
– Change values
Enter key
– Open levels
– Activate editing mode for parameters and function blocks
– Confirm entered settings
EB 5571-2 EN 5
Operation

1.2 Display
After connecting the controller to the power supply, the current application and firmware ver-
sion appear on the display. After pressing the key, the start screen appears, which also ap-
pears during operation. This start screen contains the current system scheme, time, date and in-
formation on operation.
1.3 Operating modes
The following operating modes are available:
4Stand-by: Stand-by mode
4Night: Night mode (reduced operation)
4Day: Day mode (rated operation)
4Auto (stand-by): Automatic mode with switchover between day and stand-by mode
4Auto (night): Automatic mode with switchover between day and night mode
Standby mode
The heat exchanger only works when there is a demand for domestic hot water or a demand for
an external set point. The protective functions remain active.
Night mode (reduced mode)
Regardless of the programmed times-of-use, the set points relevant for reduced operation are
used by the controller.
Day mode (rated operation)
The set points for rated operation are used for control regardless of the entered time schedule
and the summer mode.
Automatic mode
During the programmed times-of-use, the controller works in rated operation. Outside these
times-of-use, the controller is in reduced operation or stand-by mode, depending on the set-
tings. The controller switches automatically between both operating modes.
6EB 5571-2 EN
Operation
60˚C
47˚C
100%
60˚C
48˚C
0%
60˚C
55˚C
59˚C
53˚C
86%
100%
11˚C

1.3.1 Setting the operating mode
The controller with start screen
Exit the start screen.
Display: Übersicht (Overview)
The 'Betriebsart' (Operating mode) menu item is
highlighted.
Activate the editing mode for the operating mode.
Display: The currently valid operating mode blinks.
Select operating mode.
Confirm selected operating mode.
Exit setup menu
Select 'Zurück' (Back).
Exit overview menu.
Display: Start screen
EB 5571-2 EN 7
Operation
Übersicht Anl x.x
Betriebsart Tag
Freigabe 1
Führungstauscher Auto
Istwerte
Parameter
Service
Zurück
Übersicht Anl x.x
Betriebsart Standby
Freigabe 1
Führungstauscher Auto
Istwerte
Parameter
Service
Zurück
60˚C
47˚C
100%
60˚C
48˚C
0%
60˚C
55˚C
59˚C
53˚C
86%
100%
11˚C
60˚C
47˚C
100%
60˚C
48˚C
0%
60˚C
55˚C
59˚C
53˚C
86%
100%
11˚C

1.4 Selecting the language
The standard application WT71 is available in German and Polish.
The controller with start screen
Exit the start screen.
Display: Übersicht (Overview)
The 'Betriebsart' (Operating mode) menu item is
highlighted.
Opening the service menu
Activate the controller editing mode.
Display: 'Schlüsselzahleingabe' (Key number entry)
0000 blinks.
Enter application key number .
Confirm application key number .
Display: Übersicht (Overview)
Select Service.
Open the service menu.
Display: Service
The 'Language' menu item is highlighted.
Select 'Language' menu item.
Select language.
Confirm language selected.
After selecting the language, exit the menu step-by-step and return to the start screen:
Select 'Zurück' (Back)
8EB 5571-2 EN
Operation
60˚C
47˚C
100%
60˚C
48˚C
0%
60˚C
55˚C
59˚C
53˚C
86%
100%
11˚C
Übersicht Anl x.x
Betriebsart Tag
Freigabe 1
Führungstauscher Auto
Istwerte
Parameter
Service
Zurück
Schlüsselzahleingabe
0000
Service
Language
Anlage konfigurieren
Wärmetauscher 1
Wärmetauscher 2
Wärmetauscher 3
Heizkreis 1
Zurück

Exit overview menu.
Display: Start screen
1.5 Heat exchangers settings
The following settings are possible:
4-: Heat exchanger 1, 2 and 3 switched off
41: Heat exchanger 1 running, heat exchanger 2 and 3 (if required) switched off
42: Heat exchanger 2 running, heat exchanger 1 and 3 (if required) switched off
41+2: Heat exchanger 1 and 2 running; heat exchanger 3 (if required) switched off
Lead heat exchanger based on selection
43: Heat exchanger 3 running, heat exchanger 1 und 2 switched off
41+3: Heat exchanger 1 and 3 running, heat exchanger 2 switched off
Lead heat exchanger based on selection
42+3: Heat exchanger 2 and 3 running, heat exchanger 1 switched off
Lead heat exchanger based on selection
41+2+3 Heat exchanger 1, 2 and 3 running
Lead heat exchanger based on selection
If more than one heat exchanger is enabled for operation (e.g. setting "1+2", "1+3", "2+3",
"1+2+3"), the lead heat exchanger can be selected as follows:
41: All heat exchangers running, heat exchanger 1 as lead heat exchanger
42: All heat exchangers running, heat exchanger 2 as lead heat exchanger
43: All heat exchangers running, heat exchanger 3 as lead heat exchanger
4Auto: All heat exchangers running, automatic lag/lead sequence change,
see section 4.3
1.5.1 Enabling heat exchangers and selecting lead heat exchanger
The controller with start screen
EB 5571-2 EN 9
Operation
60˚C
47˚C
100%
60˚C
48˚C
0%
60˚C
55˚C
59˚C
53˚C
86%
100%
11˚C

Exit the start screen.
Display: Übersicht (Overview)
The 'Betriebsart' (Operating mode) menu item is
highlighted.
Enable heat exchanger
Select 'Freigabe' (Enable) menu item.
Activate the controller editing mode for 'Freigabe'
(Enabling).
Display: 'Freigabe' (Enabling) blinks.
Enable heat exchangers as required.
Confirm enabling.
Select lead heat exchanger (Führungstauscher) (only when
enable setting = "1+2", "1+3", "2+3", "1+2+3")
Select 'Führungstauscher' (lead heat exchanger)
menu item.
Activate the controller editing mode for 'Führungstau-
scher' (lead heat exchanger).
Display: 'Führungstauscher' (lead heat exchanger)
blinks.
Set lead heat exchanger.
Confirm setting.
Exit overview
Select 'Zurück' (Back)
Exit overview menu.
Display: Start screen
10 EB 5571-2 EN
Operation
Übersicht Anl x.x
Betriebsart Standby
Freigabe 1
Führungstauscher Auto
Istwerte
Parameter
Service
Zurück
Übersicht Anl x.x
Betriebsart Standby
Freigabe 1+2
Führungstauscher Auto
Istwerte
Parameter
Service
Zurück
60˚C
47˚C
100%
60˚C
48˚C
0%
60˚C
55˚C
59˚C
53˚C
86%
100%
11˚C
Übersicht Anl x.x
Betriebsart Standby
Freigabe !
Führungstauscher Auto
Istwerte
Parameter
Service
Zurück

1.6 Setting the system time
The current time and date need to be set immediately after start-up and after a power failure la-
sting more than 24 hours.
Set the system time in the Settings level under the menu item 'Date/Time' after pressing the
changeover key and entering the system key number (see page 85). The Automatic summer
time function can also be activated (on) or deactivated (off) in this menu item.
4System time: Time-dependent functions of the saved application are based on the system
time set in the PLC.
4Automatic summer time: The summer time is automatically set on the last Sunday in
March at 02:00 h and the winter time on the last Sunday in October at 03:00 h.
The controller with start screen
Activate the controller editing mode.
Display: 'Schlüsselzahleingabe' (Key number entry).
0000 blinks.
Enter the key number .
Confirm the entered key number.
Display: Einstellungsebene (Settings level)
The 'Datum/Uhrzeit' (Date/Time) menu item is high-
lighted.
EB 5571-2 EN 11
Operation
60˚C
47˚C
100%
60˚C
48˚C
0%
60˚C
55˚C
59˚C
53˚C
86%
100%
11˚C
Schlüsselzahleingabe
0000
Einstellungsebene
Datum / Uhrzeit
RS232/Slave
RS485/Master
RS232/Prog
Zählerbus
Universaleingangstyp
Zurück

Activate the 'Datum/Uhrzeit' (Date/Time) menu item.
Display: System time (DD.MM.YYYY HH:MM)
Activate the editing mode for the system time.
Display: Date (DD) blinks.
Enter date.
Confirm date entered.
Display: Month (MM) blinks.
Enter month.
Confirm month entered.
Display: Year (YYYY) blinks.
Enter year.
Confirm year entered.
Display: Time (HH) blinks.
Enter hour.
Confirm hour entered.
Display: Minutes (MM) blink.
Enter minutes.
Confirm minutes entered.
Display: "Autom. Sommerzeit ? __"
(Automatic summer time? __) blinks
If required, change the current setting (on/off) of the
Automatic summer time function.
Activate function: Automatic summer time? Ein (On)
Deactivate function: Automatic summer time? Aus
(Off)
Exit the 'Datum/Uhrzeit' (Date/Time) menu item.
Display: Einstellungsebene (Settings level)
Exit the settings level
Select 'Zurück' (Back).
Exit overview menu.
Display: Start screen
12 EB 5571-2 EN
Operation
Einstellungsebene
Autom. Sommerzeit ? Ein
RS232/Slave
RS485/Master
RS232/Prog
Zählerbus
Universaleingangstyp
Zurück
Einstellungsebene
21.7.2010 10:00
RS232/Slave
RS485/Master
RS232/Prog
Zählerbus
Universaleingangstyp
Zurück
Einstellungsebene
21.7.2010 10:00
RS232/Slave
RS485/Master
RS232/Prog
Zählerbus
Universaleingangstyp
Zurück

Note: If no key is pressed for two minutes, the PLC automatically returns to the start screen.
1.7 Entering time schedules
Two time schedules can be programmed for each day of the week. If only one time schedule is
required, the start and stop times of the second schedule must be programmed to identical ti-
mes.
The controller is delivered with the default time schedule starting at 7:00 h and ending at
22:00 h.
The setting is performed in the menu [Übersicht > Parameter > Allgemein > Zeitprogramme]
when just heat exchangers are to be controlled in a system (Anl x.0).
If a consumer on the secondary side exists, the setting is performed in the menu [Übersicht > Pa-
rameter > Heizkreis 1…3].
The time schedules of DHW heating is programmed separately for the DHW and thermal disin-
fection in the menu [Übersicht > Parameter > Warmwasserbereitung].
Use the arrow key and enter key to activate the editing mode for the 'Nutzungszeiten'
(Time schedule) menu item.
Select 'Nutzungszeiten' (Time schedule) menu item.
Activate the editing mode for the time schedule.
'Montag – Sonntag' (Monday – Sunday) is high-
lighted.
Select time period/day.
EB 5571-2 EN 13
Operation
Heizkreis 1
Montag – Sonntag
Montag
Dienstag
Mittwoch
Donnerstag
Freitag ↓
Zurück
Heizkreis 1
Vorlauftemp.-Sollwert 70°C
Absenkdifferenz 15°C
Regelparameter
Nutzungszeiten
Zurück

Activate the editing mode for the time period/day.
Display: Current time-of-use periods
(HH:MM – HH:MM HH:MM – HH:MM)
Activate the editing mode of the time period.
Display: Start time of the first time schedule blinks.
Edit start time (steps of 30 minutes)
Confirm start time.
Display: Stop time of the first time schedule blinks.
Edit stop time (steps of 30 minutes)
Confirm stop time.
Display: Start time of the second time schedule blinks.
The second time schedule is set like the first time schedule.
To set the time schedules for each day, repeat the instructions in the fields highlighted in gray.
After programming all the time schedules, exit the menu step-by-step and return to the start
screen:
Select 'Zurück' (Back).
Exit overview menu.
Display: Start screen
14 EB 5571-2 EN
Operation
Heizkreis 1
Montag – Sonntag
Montag
Dienstag
07:00 – 12:00 12:00 – 22:00
Donnerstag
Freitag ↓
Zurück

1.8 Entering public holidays
The time schedule programmed for Sunday apply on public holidays. No public holidays are
ready programmed.
Public holidays must be programmed in the menu [Übersicht > Parameter > Allgemein].
Use the arrow key and enter key to activate the 'Feiertage' (Public holidays) menu item.
Select 'Feiertage' (Public holidays) menu item.
Activate 'Feiertage' (Public holidays) menu item.
Display: Feiertage (Public holidays)
Activate the editing mode for public holidays.
Display: 0 (first figure for day of month) blinks.
Select date
Confirm date.
Display: 01. (first figure for month) blinks.
Select month.
Confirm date and month.
Set other public holidays in the same manner as des-
cribed above.
EB 5571-2 EN 15
Operation
Allgemein
Rücklauftemp. min 20 °C
Pumpennachlaufzeit 5 min
Folgebetrieb
Sommerbetrieb
Zeitprogramme
Feiertage
Zurück
Feiertage
01.01.
Zurück
Feiertage
01.01.
Zurück
Feiertage
25.12.
01.01.
Zurück

Deleting public holiday
Select the public holiday to be deleted.
Activate the public holiday.
Display: Date blinks.
Select – – .
Confirm that the public holiday is to be deleted.
After setting all public holidays, exit the menu step-by-step and return to the start screen:
Select 'Back'.
Exit overview menu.
Display: Start screen
1.9 Setting parameters
Note:
–Configure the system (see section 2.1.1) before setting any parameters as the parameters
of the application are reset to the default settings on changing the system code number.
–Before setting the parameters in the service menu, the application key number must be en-
tered before pressing the changeover key ( ).
Use the arrow key and enter key ( and ) to select parameters in the menus (2) described
in section 9.
Activate the editing mode for the parameter
Change the parameter.
Confirm parameter setting.
After setting the parameters, exit the menu step-by-step and return to the start screen:
Select 'Zurück' (Back).
Exit overview menu.
Display: Start screen
16 EB 5571-2 EN
Operation

2 Start-up
2.1 System code numbers
In the service menu, the required system code number can be selected after entering the key
number of the application. The application key number can be found on page 85. To avoid un-
authorized use of the key number, remove the page or make the key number unreadable.
Two heat exchanger circuits and six different consumer connections are possible.
Heat
exchanger
1
Heat
exchanger
2
Heat
exchanger
3
Heating
circuit 1 Heating circuit 2 Heating circuit 3 DHW heating
System Anl 1.x • • –
System Anl 2.x • • •
System Anl x.0 – – – –
System Anl x.1 • – – –
System Anl x.2 • • – –
System Anl x.3 • • • –
System Anl x.4 – – – •
System Anl x.5 • – – •
System Anl x.6 • • – •
2.1.1 Configuring the system
Note:
–Perform the electrical connection described in section 7 before configuring the system.
–Changing the system code number (Anl x) causes the application parameters to be reset
to their default settings.
All the systems described in section 2.1.1 can be set using the system configuration. Use the ar-
row keys and enter key to perform the settings.
EB 5571-2 EN 17
Start-up

Example: System Anl 2.6 is to be configured.
Heat
exchanger
1
Heat
exchanger
2
Heat
exchanger
3
Heating
circuit 1 Heating circuit 2 Heating circuit 3 DHW heating
System Anl 2.x • • •
System Anl x.6 • • – •
The controller with start screen
Exit the start screen.
Display: Übersicht (Overview)
The 'Betriebsart' (Operating mode) menu item is
highlighted.
Opening the service menu
Activate the controller editing mode.
Display: 'Schlüsselzahleingabe' (Key number entry).
0000 blinks.
Enter application key number.
Confirm application key number.
Display: Übersicht (Overview)
Select Service.
18 EB 5571-2 EN
Start-up
60˚C
47˚C
100%
60˚C
48˚C
0%
60˚C
55˚C
59˚C
53˚C
86%
100%
11˚C
Übersicht
Betriebsart Standby
Freigabe 1+2
Führungstauscher Auto
Istwerte
Parameter
Service
Zurück
Schlüsselzahleingabe
0000

Open the service menu.
Display: Service
The 'Language' menu item is highlighted.
Activating the system configuration
Select 'Anlage konfigurieren' (Configure system)
menu item.
Activate the editing mode for 'Anlage konfigurieren'
(Configure system).
The system configuration starts with system Anl 1.0
(two heat exchangers).
Select third heat exchanger.
Confirm selection.
Select heating circuit 1.
Select heating circuit 2.
Confirm selection.
EB 5571-2 EN 19
Start-up
VL
RL
VL
RL
Service
Language
Anlage konfigurieren
Wärmetauscher 1
Wärmetauscher 2
Wärmetauscher 3
Heizkreis 1
Zurück

Select DHW heating.
Confirm with [Übernehmen].
If the configuration is to rejected:
Select [Verwerfen] on display.
Reject configuration.
The display returns to the service menu.
Setting the heat exchanger rating
It is particularly important to set the rating of a heat exchanger if the lag/lead sequence is to de-
pend on the heat exchanger's output capacity. Refer to section 4.2. The rating of all heat ex-
changer is set to 70 kW by default. If the rating of one or more heat exchangers is to be chan-
ged, proceed as follows:
Select required heat exchanger (Wärmetauscher
1-3).
Activate the editing mode for 'Wärmetauscher x'
Display: Wärmetauscher x (Heat exchanger x)
The menu item 'Nennleistung' (Rating) is highlighted.
Activate the editing mode for rating.
Set the required rating.
Confirm setting.
After configuring the system, exit the menu step-by-step and return to the start screen:
Select 'Zurück' (Back).
Exit overview menu.
Display: Start screen
20 EB 5571-2 EN
Start-up
Service
Language
Anlage konfigurieren
Wärmetauscher 1
Wärmetauscher 2
Wärmetauscher 3
Heizkreis 1
Zurück
Wärmetauscher 1
Nennleistung 70kW
Regelkreis 3-Punkt
Freigabe EIN
Zurück